Controller fault replacement system and method

A controller and main controller technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as user losses and components that cannot operate normally, to improve the replacement speed, avoid abnormal vehicle functions, and quickly replace Effect

Pending Publication Date: 2021-10-08
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the controller that controls components such as the engine, motor, or battery has a major failure, the components will not be able to operate normally, which will cause unpredictable losses to the user

Method used

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  • Controller fault replacement system and method
  • Controller fault replacement system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a schematic structural diagram of a controller fault takeover system provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the controller failover system provided by this embodiment includes a first communication bus 11, a second communication bus 12, a vehicle communication network 13, a main controller 14 and at least one secondary controller 15; wherein, the main controller 14, Communicatively connected with the secondary controller 15 through the first communication bus 11, and communicated with the vehicle communication network 13 through the second communication bus 12, for sending controller operation data to the vehicle communication network 13, and for detecting the main controller 14 When a fault occurs and the fault is a preset switching fault, a switching trigger signal is sent to the secondary controller 15 based on the first communication bus 11; the secondary controller 15 is communicatively connected to the vehicle...

Embodiment 2

[0049] In this embodiment, on the basis of the foregoing embodiments, optionally, the secondary controller is further configured to send controller operation data to the main controller through the first communication bus after receiving the fault trigger signal.

[0050] In this embodiment, after the sub-controller works instead of the main controller, the sub-controller can not only send the controller operation data to the vehicle communication network, but also send the controller operation data to the main controller.

[0051] The advantage of sending the controller’s operating data to the main controller is that it can realize the backup of the operating data of the secondary controller, and then when the secondary controller has a major failure, the secondary controller can be diagnosed based on the data backed up in the primary controller analysis; or, data synchronization between the main controller and the sub-controller can be realized. After the main controller has ...

Embodiment 3

[0057] figure 2 It is a schematic flow chart of a controller fault replacement method provided by Embodiment 3 of the present invention. This embodiment is applicable to the case where the primary controller is replaced by a secondary controller when the primary controller fails. This method can be replaced by a faulty controller System execution, the system can be implemented by hardware and / or software, the method specifically includes the following steps:

[0058] S210. The main controller sends controller operating data to the vehicle communication network based on the second communication bus. If it is detected that the main controller fails and the failure is a preset switching failure, send Send toggle trigger signal.

[0059] S220. When the secondary controller receives the switching trigger signal, based on the received controller operation data sent by the main controller through the first communication bus, and the vehicle communication network through the first c...

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Abstract

The embodiment of the invention discloses a controller fault replacement system and method, and the system comprises a first communication bus, a second communication bus, a vehicle communication network, a main controller, and at least one auxiliary controller, and the auxiliary controller receives controller operation data transmitted by the main controller through the first communication bus. External controller data transmitted by the vehicle communication network is received through the second communication bus, so that data sharing between the main controller and the auxiliary controller is realized, data synchronization between the main controller and the auxiliary controller is always kept, and when the main controller detects that a preset switching fault occurs, the main controller is switched to the auxiliary controller. Due to data synchronization of the main controller and the auxiliary controller, the auxiliary controller can be immediately switched to replace the main controller to transmit controller operation data to the vehicle communication network through the second communication bus, replacement of the auxiliary controller during downtime of the main controller is achieved, the stability of the controller is guaranteed, and vehicle function abnormity caused by downtime of the controller in the use scene of the vehicle is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicle controllers, and in particular to a controller failure replacement system and method. Background technique [0002] At present, people pay more and more attention to the safety of vehicles, especially in some important scenarios, it is necessary to ensure that important vehicle components such as engines, motors or batteries can operate normally. If the controller that controls components such as the engine, motor, or battery fails, the components will not operate normally, causing unpredictable losses to users. Therefore, the stability of the vehicle controller is of paramount importance. Contents of the invention [0003] Embodiments of the present invention provide a system and method for taking over a controller fault, so as to improve the stability of a vehicle controller. [0004] In the first aspect, an embodiment of the present invention provides a controller fail...

Claims

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Application Information

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IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 田学明张晓谦李岩孟祥泰田娇孙荫权
Owner CHINA FIRST AUTOMOBILE
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